If you are using Checkvistle, we can hardly help with the bugfix as is not our app, it is developed by a third party using Checkvist's API.
On the other hand, Checkvist has its own mobile webapp that works offline - https://m.checkvist.comIf the login problems happen on the mobile webapp (m.checkvist.com) we will research the problem and definitely help :)

No progress in this direction yet. We researched the demand about a year ago and unfortunately found it rather insignificant. Being a small team, we have to concentrate on the most important features first.
The request's status was misleading, I've updated it.

I can't see how we could implement this in Checkvist, but there's an app out there, called Gingko (https://gingkoapp.com/) that does exactly what you're talking about - it expands the list from left to right, not from top to bottom. Have you tried it?

That's a good suggestion, thanks. Although you don't need to scroll to switch between lists even now -- try the 'll' (lists) shortcut to invoke the Lists menu. Same for other dialog windows, like 'ec' for Expand/Collapse, 'oo' for 'Options, etc.

Hello, Lex! Actually, if you use smart syntax, all it takes to assign a task is add the @ and select a username from the completion window. No extra commands or steps. Also, if you add yourself as the assignee to the parent task, all its siblings will be also assigned to you - you'll receive notifications, see them in the search results, etc. Won't this work in your case?

@Matej It's on our top priority list now. As soon as we've released the update we're working now (repeating tasks), we'll start working on the new mobile (offline) clients. Hope there'll be good news soon. The browser version could also handle the offline state better, but we'll start with the mobile offline support first, I think.
Sorry.